[2.0.1] DefinitionCache related bug-fixes

- Fixed bug where manually modified definitions were not saved via cache (mostly harmless, except for the fact that it would be a little slower)
- Configuration objects with different serials do not clobber each others when revision numbers are unequal
. DefinitionCache keys reordered to reflect precedence: version number, hash, then revision number

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1204 48356398-32a2-884e-a903-53898d9a118a

library/HTMLPurifier/DefinitionCache/Serializer.php

@@ -88,9 +88,18 @@ class HTMLPurifier_DefinitionCache_Serializer extends
      * @note No trailing slash
      */
     function generateDirectoryPath($config) {
+        $base = $this->generateBaseDirectoryPath($config);
+        return $base . '/' . $this->type;
+    }
+    
+    /**
+     * Generates path to base directory that contains all definition type
+     * serials
+     */
+    function generateBaseDirectoryPath($config) {
         $base = $config->get('Cache', 'SerializerPath');
         $base = is_null($base) ? dirname(__FILE__) . '/Serializer' : $base;
-        return $base . '/' . $this->type;
+        return $base;
     }
     
     /**